Answer:
Students in 7th grade took a standardized math test that they also had taken in 5th grade. The results are shown on the dot plot, with the most recent data shown first.
Find and compare the means to the nearest tenth.
7th-grade mean:
✔ 16
5th-grade mean:
✔ 13.4
What is the relationship between the means?
✔ The 7th-grade mean is about 2.5 points higher.
Step-by-step explanation:
Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade students.
What is the Mean of a Data Distribution?The mean is the average of the data set, that is the sum of each data value divided by the number of data points.
Given that, 7th Grade Students in 7th grade took a standardized math test that they also had taken in 5th grade.
Mean for 7th Grade Students:
Mean = [10 + 11 + (2 × 12) + 13 + 14 + (2 × 15) + (3 × 16) + (3 × 17) + (2 × 18) + (2 × 19) + (3 × 20)]/21
Mean = 335/21
Mean = 15.95 = 16
Mean for 5th Grade Students:
Mean = [8 + (2 × 9) + (2 × 10) + (2 × 11) + (2 × 12) + (2 × 13) + 14 + (3 × 15) + (2 × 16) + 17 (2 × 18) + 19
Mean = 281/21
Mean = 13.38 = 13.4
The difference between their means = 16 - 13.4 = 2.6.
Hence, Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade students.
Learn more about the mean of data on:
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Please help. Will give brainliest
Solve the equation using mental math x-1/5 = 4 2/5
Answer:
Exact Form:
x = 23 /5
Decimal Form:
x = 4.6
Mixed Number Form:
x = 4 wholes 3/5
Step-by-step eplanation:
Please help. If you get it right I will give you brainliest.
Which proportion can be used to find h, the height of the building in feet?
Answer:
3:6, as 18:?
Step-by-step explanation:
The answer would be 36
Which statement is true about Saturn?
A: The temp on Saturn is very hot, averaging 500 degrees C
B: Saturn does not have any atmosphere
C: Saturn is the most dense planet in our solar system
D: Saturn is known for its large rings
Sorry about the subject, there is no science subject so I chose random
Answer:
i would say D
Step-by-step explanation:
saturn is pretty cold since its far away from the sun so not A
saturn does have an atmosphere, one that is similar to jupiter so its not B
saturn is less dense than water, although the core is not dense but i wound say not C
therefore it has to be D
good luck i hope this is right
The store manager decided to decrease price of ice cream store sells by 10% for the month of July. The amount of ice-cream sold in July increased by 24% comparing to June. Did the store proceedings (money that the store obtained from ice cream sales) increase or decrease in July? By how many percent?
Answer:
For example:
Price of ice cream in june was 10$ and amount of ice cream sold is 100. Store earned 10$ 100=1000$
Price of ice cream in july has been decreased by 10%. Price of ice cream is now 9$. The amoun of ice cream sold in july increased by 24% compering to june. So amount of sold ice cream in july is 124. Store earned 9$*124=1116$.
Store's proceedings increased in July by 11.6%.
Answer:
increased by 11.6%
Step-by-step explanation:
Answer parts A and B- If you give a full explanation I will give brainliest, 5 stars, and thanks! Do your work on a piece of paper on a number line for part B then take a picture.
help me pls i will make u a brainliest
Answer:
7,302*8 = 58,416
he would make $58,416
A cookie recipe that yields 36 cookies calls for 2 cups of flour. Rhea has 7 cups of flour. How many cookies can she make? Use at least 2 ways to show your answer.
Answer:
Here's how to make your own homemade larabars with almonds, dates, ... And not to worry if your prechopped dates come coated with oat flour or ... (If the dried fruit you're using is already super soft and moist, you can ... PB & J Larabars ... above recipe, substituting the following ingredients: 1/2 cup packed ...
Step-by-step explanation:
Select all that apply.
Green pencils are priced at $1.28 for 4. Blue pencils are priced at $5.52 for 24. Which of the following statements are true?
The unit rate for green pencils is $0.32
The unit rate for blue pencils is $0.28
The green pencils are priced less per pencil
The blue pencils are priced less per pencil.
need an expert verified answer
Answer:
The first and third is correct.
Step-by-step explanation:
I'm not a expert but I know its right.
Hi! Hope You're Having A More Than Amazing Day!
Please Help!
For Jimena to be accepted into her favorite college, she will have to earn an entrance exam score at least 2 standard deviations above the mean. Assume entrance exam scores are normally distributed, with a mean of 790 and a standard deviation of 50. What exam score does Jimena need to be accepted at her favorite college?
690
890
740
840
890 is the answer hope I got it
Please help.
Find the lateral area and total surface area of the prism.
Jada's dog ran 20 laps around the track and then a quarter of that again. How far did Jada's dog run in all? *
Answer:
25 laps
Step-by-step explanation:
The dog ran 20 laps and a quarter of 20. 20 divided by 4 equals 5 so it would be 20+5 which equals 25
Mrs. Bailey has a flower garden 56 are pink, and 121 are blue. ½ of the pink flowers are blooming. ⅓ of the blue flowers are blooming. How many flowers does Mrs.Bailey have that ARE BLOOMING in her garden.
Answer:
a
Step-by-step explanation:
pls help ill give brainliest :)
Answer:
a) 7.07
Step-by-step explanation:
5^2 + 5^2 = x^2
50 = x^2
x = 7.07
2 2/5 multiplied by 2 multiplied by 3 1/5
Answer:
15 9/25
Step-by-step explanation:
1 Convert 2\frac{2}{5}2
5
2
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
c
b
=
c
ac+b
.
\frac{2\times 5+2}{5}\times 2\times 3\frac{1}{5}
5
2×5+2
×2×3
5
1
2 Simplify 2\times 52×5 to 1010.
\frac{10+2}{5}\times 2\times 3\frac{1}{5}
5
10+2
×2×3
5
1
3 Simplify 10+210+2 to 1212.
\frac{12}{5}\times 2\times 3\frac{1}{5}
5
12
×2×3
5
1
4 Convert 3\frac{1}{5}3
5
1
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
c
b
=
c
ac+b
.
\frac{12}{5}\times 2\times \frac{3\times 5+1}{5}
5
12
×2×
5
3×5+1
5 Simplify 3\times 53×5 to 1515.
\frac{12}{5}\times 2\times \frac{15+1}{5}
5
12
×2×
5
15+1
6 Simplify 15+115+1 to 1616.
\frac{12}{5}\times 2\times \frac{16}{5}
5
12
×2×
5
16
7 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}
b
a
×
d
c
=
bd
ac
.
\frac{12\times 2\times 16}{5\times 5}
5×5
12×2×16
8 Simplify 12\times 212×2 to 2424.
\frac{24\times 16}{5\times 5}
5×5
24×16
9 Simplify 24\times 1624×16 to 384384.
\frac{384}{5\times 5}
5×5
384
10 Simplify 5\times 55×5 to 2525.
\frac{384}{25}
25
384
11 Convert to mixed fraction.
15\frac{9}{25}
15 9/25
Answer the problem please
Answer:
this is not middle school math no way
Step-by-step explanation:
Help worth 20 pts pls help
Answer:
63
Step-by-step explanation:
Use the properties of the exponent.
Answer:
63
Step-by-step explanation:
A rectangular prism has a length of 8 inches and a width of 6 inches. The lateral area is 84 square inches. What is the height of the prism?
What is the height of the prism??
Answer:
3
Step-by-step explanation:
A rectangular prism has a length of 8 inches and a width of 6 inches. The lateral area is 84 square inches. What is the height of the prism?
Find the perimeter of the base.
P = 2l + 2w Perimeter of a rectangle
P = 2(8) + 2(6) Substitute: l = 8 and w = 6
P = 28
Use the formula for lateral area.
L = Ph
84 = (28)h Substitute: L = 84 and P = 28
h = 3 Solve for h.
The height of the prism is 3 inches.
help me with this please i will crown brainliest :). even if it answer is wrong
Answer:
hi
Step-by-step explanation:
can i have brainliest
Gregory knows that Triangle A B C is reflected onto Triangle A prime B prime C prime. Which statement about the figures is true?
If Gregory draws the segment with endpoints A and A’, then the midpoint will lie on the line of reflection.
If Gregory draws the segment with endpoints B and C’, then the midpoint will be on the line of reflection.
Points A and B are equidistant from the line of reflection.
Line segment A B will be perpendicular to the line of reflection.
Answer: I think it’s A
Step-by-step explanation:
Hope this helps
Answer: A.) If Gregory draws the segment with endpoints A and A’, then the midpoint will lie on the line of reflection.
Step-by-step explanation: Edge 2021
I have no idea how to solve this!! Please someone help me!!
Answer:
It most likely be 55 but I'm not sure
help with 3 short questions
hduwc help
okok so.
context.
"Raul’s grandfather is Miguel, and Raul’s sister is Paula. Raul’s age is the same as his grandfather’s age minus 60 times the age of his sister. Miguel is 65 years old. Using the results from Part C, write an equation to find Paula’s age, p (in years)." answer: "r = 65 - 60p"
"Rewrite the equation from Part D by factoring the side that contains the variable p." answer: "r = 5 (13 - 12p)"
"Solve the equation for p to find Paula’s age. Express her age (in years) as a fraction." "answer: p = -1/60r + 12/12"
thingy i need help with is "How many months old is Paula?"
HELPPP!!!
Evaluate the expression.
Which equation is NOT equivalent to 5 + n = 10. Select all that apply.
5 + n -n = 10 – n
5 + n – 5 = 10 - 10
5 + n – 5 = 10 - 5
5 + n + 3 = 10 + 3
5 + n – 10 = 10 - 5
Answer:
5 + n - 5 = 10 - 10
Step-by-step explanation:
if you do 5-5 that would equal zero, and if you do 10-10 it would equal 0 also, so all you would be left with is 0 + n= 0 and that is not equal to 5 + n = 10
Answer:
5 + n - 5 = 10 - 10
Step-by-step explanation:
(repost) Help Please I will Give brainliest If Correct!!
Answer:
There are about 7 x 10^6
Step-by-step explanation:
3.5*2029249= 7102347
rounds to 7000000= 7 x 10^6
Answer:
7.102347 times [tex]10^{6}[/tex].
Step-by-step explanation:
Alright. This is an inanely large amount of words, as a drill for scientific notation. The first step is, since the mystery book has 2,029,242 words, to turn this into a single digit multiplied by a power of ten - 2.029242 times [tex]10^{6}[/tex] (apologies for the weird font change in the middle). The science fiction book is 3.5 times larger - multiply 2.029242 on a calculator (unless you really like suffering for some reason; then do it by hand) - it comes out as 7.102347. Thus, the answer is 7.102347 times [tex]10^{6}[/tex].
A bowl holds 5 cups of water. How many ¼ cups will it take to fill up the bowl?
Answer:
20
Step-by-step explanation:
Answer:
15 1/4
Step-by-step explanation:
hope you get it right
Sean bought his house at $200,000 two years ago. He is now
selling it for $267,000. What is the percent markup?
A) 2% increase
B) 25.1% increase
C) 33.5% increase
D) 67% increase
Answer: 33.5%
Step-by-step explanation:
common sense
USPS charges a flate rate of $5.50 for the 1st pound of shipping, plus $1.35 for each additional pound. FedEx charges $8.00 for the 1st pound of shipping and $1.10 for each additional pound. How many pounds will it take for USPS and FedEx to cost the same?
usps is cheaper
Step-by-step explanation:
usps equals 6 dollars 85 cents and fedex charges 9 dollars and 10 cents